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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on October 8, 1998. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 8355 | S21 | E64 | 06 | 0320 | BETA | Oct 14, 1998 | Oct 21, 1998 | Nov 4, 1998 |
| № 8354 | S18 | W00 | 08 | 0050 | BETA | Oct 9, 1998 | Oct 16, 1998 | Oct 30, 1998 |
| № 8353 | N21 | E54 | 03 | 0020 | BETA | Oct 13, 1998 | Oct 20, 1998 | Nov 3, 1998 |
| № 8350 | N19 | E02 | 14 | 0240 | BETA | Oct 9, 1998 | Oct 16, 1998 | Oct 30, 1998 |
| № 8349 | S25 | W51 | 04 | 0020 | BETA | Oct 5, 1998 | Oct 12, 1998 | Oct 26, 1998 |
| № 8348 | N18 | W55 | 03 | 0020 | BETA | Oct 5, 1998 | Oct 12, 1998 | Oct 25, 1998 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1969 to October 1998. The gray background is the average SSN index.
